A circular shaped item with an aperture manufactured to predetermined dimensions and designed for use as a seal in stuffing boxes, packing nuts, and the like. It may be (1) any nonmetallic molded or formed ring (except solid (without joint) rings having a square or rectangular cross section); or (2) any shredded metal or metal foil type metallic or semimetallic rings. Excludes felt items but includes multimaterial items in which one of the materials is felt. For solid (without joints) nonmetallic items with a square or rectangular cross section, see washer (as modified) and gasket. For rubber items specifically designed for weather-proofing doors, windows, chests, and the like see seal, nonmetallic angle; seal, nonmetallic channel; and seal, nonmetallic, special shaped section. For circular (with aperature) nonmetallic items with a solid round cross-section see o-ring. Excludes cup, compression; gasket; washer (as modified); and felt, mechanical, preformed.
Classification: Gaskets,washers & other seals
NSN 7035-00-252-7467
NSN 5960-01-054-3752
NSN 5985-00-405-0597
NSN 6150-00-138-0716
NSN 5998-01-141-5698
NSN 6145-01-411-4757
NSN 5895-00-235-4520
NSN 6105-01-539-5332
NSN 5915-01-023-2553
NSN 5930-01-232-3481
NSN 6110-01-124-8799
NSN 6135-01-328-0639